Purple Does Exist, Just Not in the Way People Think

A soft pastel gradient moving from red through violet into blue, illustrating how red and blue-violet tones can visually transition through purple.

On non-spectral colour, cone cells, and the internet’s favourite science misconception Every now and then, the internet gets excited about colour science and boldly claims that purple is not real. Some people even go further and say humans cannot actually see it. That idea is only partly true, and the real story is worth understanding. … Read more